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Cambrian stratigraphy of the Tomten-1 drill core, Västergötland, Sweden

Ahlberg, Per LU ; Eriksson, Mats E. LU ; Lundberg, Frans and Lindskog, Anders LU (2016) In GFF
Abstract

The Tomten-1 drilling at Torbjörntorp in Västergötland, southern Sweden, penetrated 29.85 m of Cambrian Series 2, Cambrian Series 3, Furongian, and Lower–Middle Ordovician strata. Lithostratigraphically, the succession includes the File Haidar, Borgholm and Alum Shale formations, and the Latorp and Lanna limestones. The drill core succession is described herein for the first time, with special focus on the biostratigraphy of the Cambrian Alum Shale Formation. In the Cambrian Series 3, through Furongian Alum Shale Formation, agnostoids and trilobites have been identified to species level and the succession is subdivided into nine biozones (in ascending order): the Ptychagnostus gibbus, Ptychagnostus atavus, Lejopyge laevigata, Agnostus... (More)

The Tomten-1 drilling at Torbjörntorp in Västergötland, southern Sweden, penetrated 29.85 m of Cambrian Series 2, Cambrian Series 3, Furongian, and Lower–Middle Ordovician strata. Lithostratigraphically, the succession includes the File Haidar, Borgholm and Alum Shale formations, and the Latorp and Lanna limestones. The drill core succession is described herein for the first time, with special focus on the biostratigraphy of the Cambrian Alum Shale Formation. In the Cambrian Series 3, through Furongian Alum Shale Formation, agnostoids and trilobites have been identified to species level and the succession is subdivided into nine biozones (in ascending order): the Ptychagnostus gibbus, Ptychagnostus atavus, Lejopyge laevigata, Agnostus pisiformis, Olenus gibbosus, Parabolina spinulosa, Ctenopyge tumida, Ctenopyge bisulcata and Ctenopyge linnarssoni zones. The succession is interrupted by numerous stratigraphic gaps of variable magnitudes, as is evident from the biostratigraphy and conspicuous unconformities.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
agnostoids, biostratigraphy, Cambrian, Sweden, trilobites, Västergötland
in
GFF
pages
12 pages
publisher
Geological Society of Sweden
external identifiers
  • Scopus:84976308145
ISSN
1103-5897
DOI
10.1080/11035897.2016.1190545
language
English
LU publication?
yes
id
49ef3e19-8eb2-445a-b588-88569d89b543
date added to LUP
2016-07-18 11:56:46
date last changed
2016-07-18 11:56:46
@misc{49ef3e19-8eb2-445a-b588-88569d89b543,
  abstract     = {<p>The Tomten-1 drilling at Torbjörntorp in Västergötland, southern Sweden, penetrated 29.85 m of Cambrian Series 2, Cambrian Series 3, Furongian, and Lower–Middle Ordovician strata. Lithostratigraphically, the succession includes the File Haidar, Borgholm and Alum Shale formations, and the Latorp and Lanna limestones. The drill core succession is described herein for the first time, with special focus on the biostratigraphy of the Cambrian Alum Shale Formation. In the Cambrian Series 3, through Furongian Alum Shale Formation, agnostoids and trilobites have been identified to species level and the succession is subdivided into nine biozones (in ascending order): the Ptychagnostus gibbus, Ptychagnostus atavus, Lejopyge laevigata, Agnostus pisiformis, Olenus gibbosus, Parabolina spinulosa, Ctenopyge tumida, Ctenopyge bisulcata and Ctenopyge linnarssoni zones. The succession is interrupted by numerous stratigraphic gaps of variable magnitudes, as is evident from the biostratigraphy and conspicuous unconformities.</p>},
  author       = {Ahlberg, Per and Eriksson, Mats E. and Lundberg, Frans and Lindskog, Anders},
  issn         = {1103-5897},
  keyword      = {agnostoids,biostratigraphy,Cambrian,Sweden,trilobites,Västergötland},
  language     = {eng},
  month        = {06},
  pages        = {12},
  publisher    = {ARRAY(0x59b6f40)},
  series       = {GFF},
  title        = {Cambrian stratigraphy of the Tomten-1 drill core, Västergötland, Sweden},
  url          = {http://dx.doi.org/10.1080/11035897.2016.1190545},
  year         = {2016},
}